Gaseous fuel



' (2) JOHN HARRIS,

(2) Ohio, have invented a certain new UNITED STATES GASEOUS FUEL.

No Drawing.

To all whom it may concern:

Be it known that we, (1) JAMES R. Rosn, citizens of the United States, residing at (1) Edgeworth, (2) Lakewood, in the county of (1) Allegheny, (2) Cuyahoga, and State of (1) Pennsylvania, am in Gaseous Fuel, of is a full, clear, and

useful Improvement which the following exact description.

his invention relates to gaseous fuel, and more particularly to a fuel which is particularly useful for the purpose of cutting metals with great rapidity, where extreme cleanness of cutting is not essential. A use for which our gas is particularly well suited is for cutting scrap 1ron.

It has been proposed heretofore to mix Withhydrogen, gases such as illuminating gas and carbon monoxide, for the purpose of imparting visibility to the cone with n the flame produced by the burning of the hydrogen and for certain kinds of cutting and welding. As pointed out hereinbefore, it is the purpose of this invention to produce a gas which will enable the cutting operation' to be performed with greater rapidity than can be realized by the aforesaid mixtures. For this purpose we form a mixture of methane and ethylene with hydrogen in the proportions of from 2%% to 12%% by volume each of such methane and ethylene to the hydrogen constituents. This gas has arelatively high carbon content which materially increases the flame volume and heat units over those obtainable by the combustion in a blow-pipe of hydrogen alone with oxygen, and also produces in the flame a visible or luminous cone which onables the proportions of the gases to be conveniently adjusted and the flame to be applied efliciently to the work.

he carbon content of our gaseous mixture is lower than that required for operat- Specification of Letters Patent.

Patented Jan. 24, 1922.

Application filed December 26, 1919. Serial No. 347,456.

ing on heavy masses of metal and for cuttin cast iron and steel, and corroded, dirty an slaggy iron and tions a large flame volume and high units are essential. However, our gaseous mixture is capable of cutting with much reater rapidity than can gases having suc high carbon content.

According to Richards on Metallurgical Calculations, published in 1908, the flame temperature reduced by the combustion of the aforesaid gases will be over and the variations in the percentages of the said gases will cause the following variations in the net B. T. U. per cubic footofmixture and in the cubic feet of oxygen required for the combustion of a cubic foot of such mixture No. 1 mixture, 95% H. with 29 each of ethylene and methane; net B. T. U.s

344; cu. ft. of oxygen, .600.

No. 2 mixture, 75% H. with 12%% each of I ethylene and methane; cu. ft. of oxygen, 1.000.

Having thus described our what we claim is 1. A gas for cutting, welding and heating purposes consisting of a mixture of methane and ethylene with hydrogen in the proportions of from 24 to 12%% by volume each of methane and ethylene to hydrogen.

2. A gas for cutting, welding and heating mixture of methane hydrogen in proportions net B; T. U.s 544;

invention,

and ethylene with not substantially less than 5% by volume of such combined gases to the hydrogen and not materially morethan 25%v of such combined gases to the hydrogen, the methane and ethylene being present in the proportions of at least 24 each in such mixture.

In testimony whereof, we hereunto affix our signatures.

. JAMES R. ROSE,

JOHN HARRIS. 

